| Autor: |
Grigoriev, Yu.V., Kitaev, V. Ya, Sinitsa, V.V., Stanchik, H. Fajkov, Mezentseva, Zh.V., Ilchev, G.L. |
| Zdroj: |
Journal of Nuclear Science and Technology; August 2002, Vol. 39 Issue: Supplement 2 p222-225, 4p |
| Abstrakt: |
The time-of-flight spectra from the 1-st to 15-th multiplicities were measured on the 122 m flight path of the IBR-30 pulsed neutron booster using the 16-section liquid scintillation detector with the 80 I total volume1)for thin metallic 235U and 239Pu radiator-samples at the presence of 235U filter-samples with three thicknesses and 239Pu filtersamples with four thicknesses in the neutron beam and without them.Multiplicity distribution spectra, average multiplicities and alpha values α = αγ/ σfwere obtained from time-offlight spectra after subtracting background components for resolved resonances over the energy range of 7-170 eV and in the energy group within the range of 4.65-2150e V with and without filter samples of 235U and 239Pu.The decreasing of a resonance self-shielding effect in the alpha value by 5-50% and an increase in an average multiplicity by 10-35% with the increasing thickness of a filter sample are observed. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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